Ⅰ.句型转换
1．If he had come here yesterday, he would have seen his old friend.
→Had he come here yesterday, he would have seen his old friend.
2．She was not at school, so I didn't see her.
→If she had been at school, I would have seen her.
3．I won't let you go to work now. It is raining very hard.
→I would let you go to work now if it didn't rain so hard.
4．I didn't have her address, so I lost touch with her.
→If I had had her address, I wouldn't have lost touch with her.
5．If I were you, I would buy a new car.
→Were I you, I would buy a new car.
